THE KNOWLEDGE FEED

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$50 Challenge

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$50 Challenge

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Meet Our Oldest Reader!

Mangesh & Jason

This month's winner of our ongoing "Find Our Oldest Reader" scavenger hunt is John Tullner of Kilmarnock, Virginia. John snapped a photo of his 98-year-old friend, John D.

Concussions Linked to Lou Gehrig's Disease?

Meghan Holohan

Lou Gehrig earned the nickname the Iron Horse for good reason.

Hummingbirds in Slow Motion (HD Video)

Chris Higgins

In this video, filmmaker Ann Prum describes how she and her team made a Nature documentary about hummingbirds using high-speed HD cameras and specialized lenses.

The Quick 10: 10 People with Perfect Pitch

Stacy Conradt

We talked ("talked," I suppose) last week about people with photographic memories, and in my mind, perfect pitch - knowing exactly what pitch a note is and even being able to sing it back pe

Antarctic Abandonments Through the Ages

Jill Harness

We all know just how inhospitable the Antarctic is, so it's hardly surprising that many people who set up shop in the region later abandoned their shelters and never bothered to return.

By the Numbers: Top 10 Tweeters

David K. Israel

Ever wonder who has the most followers on Twitter? Here are the top 10, by the numbers. Please note: these are real people only!

From Twitter to TV Show

Ransom Riggs

OK, they're really reaching now. It was silly enough when they turned a web TV show into a real TV show -- remember Quarterlife, canceled after the first episode?

Brain Game: Math Square #38

The nine white squares inside the main red grid should be filled with the digits 1 through 9. Each digit should appear only once in this main grid (the red square).

Were You in Oprah's First Audience?

Colin Patrick

Are any of these people

Morning Cup of Links: Blood and Dystopia

Miss Cellania

The Senator, the Dog, and the Trial. A court case from 1869 established the concept of "A Man's Best Friend is his Dog".

Sit Right Back: Tales of Gilligan's Island

Kara Kovalchik

Just sit right back and you'll read the tale, the tale of a TV series (and some of its cast members) whose creator was greeted with "Who the (expletive) is going to tune in week after week t

Last Week's Most Popular Stories

Jason English

In case you weren't obsessively refreshing mentalfloss.com all week, here's what you

Weekend Links: Movie Bands We Wish Were Real

Allison Keene

I've been watching the "Pillars of the Earth" miniseries and marveling at the beauty of the stone cathedrals. Never let it be said monks don't know how to live well!

Weekend Links: Childhood Frights

Allison Keene

From the Department of Awww: Humboldt penguins lay chase to a butterfly at the Philadelphia Zoo.

Over the Rainbow: The Technicolor Life of the Man Who Created Oz

the mag

By Kelly K. Ferguson Once upon a time, fairy tales were dark fables designed to scare children into good behavior. This is the story of one American author who thought kids deserved

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